At first glance , the knee presents itself as a basic hinge-joint , but with closer introspection , it is clear that small rotational and gliding motions impact function at the knee . Muscles from the lumbar spine all the way down to the ankle affect the knee joint and must be considered in any diagnosis situation . The complexity of the knee joint needs to be respected as the knee is one of the most valuable weight-bearing joints to humans . References ``Basic Knee Anatomy...











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